Fountain pen



J. A. OCONNOR.

FOUNTAIN PEN.

APPLICATION FILED DEC. 15' 1920.

INVENTOR ATTOR NEY @f f lfiif...

JAMES A. OCQNNOR OF BRIDGEPORT, CONNECTICUT.

FOUNTAIN PEN.

Specification of Letters Eatent.

Patented July 18,

Application filed December 15, 1920. Serial No. 430,894.

T 0 all whom it may concern:

Be it known that I, Janus A. GCoNNoR, a citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented an Improvement in Fountain Pens, of which the following is a specification.

This invention relates to a fountain pen with a cap which, coacting with adjacent parts, retains escaped ink within the interior portions of the pen parts.

One object of the invention is to retain the ink which oozes from the pen proper and feeder to the interior of the cap and to direct it to a space within a finger shield if not retained in the cap.

Another object is to prevent ink passing from the interior of the shield to the outer surfaces of the parts.

Still another object is to provide a socket for the cap when not in use which shall enclose all inky parts of the cap.

Other objects and advantages of the invention will be fully described in connection with the accompanying drawing, forming a part of this specification, in which:

Fig. 1 is a view of the pen assembled for carrying in the pocket;

Fig. 2, a view showing portions of the parts in section;

Fig. 3, a perspective view with the shield and cap removed;

Fig. 4%, a perspective view of the finger shield; and

Fig. 5 is a perspective view of the cap.

The pen barrel 10 comprises a cylindrical wall 11, closed at one end by the partition 12 which forms the bottom of a retainiug socket 113 for a cap. As the socket holds the cap within it, ink is not readily transferred from the cap to exterior surfaces. The open end is threaded internally, or otherwise formed, so as to attach the nozzle 15 to the barrel. This connection is old and therefor not shown. Thread 16 upon the nozzle serves to connect the finger shield 17 thereto.

The nozzle 15 has a tapering smaller end 18 with a flare having a carefully finished stop surface 19. Within the nozzle the usual pen 20 and feeder 28 are mounted.

The shield 17 has a slight taper extending to or slightly past the outer end of the nozzle. At this end it is shouldered so as at 21 to provide an end carefully finished to produce a smooth stop surface 22. Ex-

cept where threaded the nozzle and shield are separated leaving a space between them for receiving ink oozing from the barrel and elsewhere.

The shield is carefully finished internally to provide the internal joint surface 23 which with the exterior joint surface 25 of the cap will form an ink tight joint. The stop surface 22 upon the shield will coact with the stop surface 24 on the cap and form with the joint described a two part ink tight joint. The diameter of the cap at the surface 25 is such as to neatly fit the socket 13 at the closed end of the barrel when the pen is in use. The exterior joint surface 25 is of just the right length to permit stop surf-aces 24: and 27 to bear equally upon the contiguous surfaces. The inner edge 27 of the cap is finished to provide another stop surface which co-acts with stop surface 19 on the nozzle 15. lVhen the pen is out of use and the cap in place on the pen end of the barrel the contact surfaces 19 and 27 will form a substantially ink tight joint. If any ink passes by the stop surfaces 19 and 27 it will be directed into the space between the nozzle and the shield passing through the space between the fiared end of the nozzle and the shield.

The finger shield is shown as extending but slightly beyond the nozzle, but its length is limited solely by the necessity to retain the pen in plain View of the writer. It is possible to make the shield shorter than the nozzle by giving the cap a slight change in shape, at the same time utilizing the necessary stop surfaces.

While I have shown a screw thread 16 on the nozzle for attaching the finger shield, it is obvious that I may form a tapering surface on the nozzle and a coacting surface in the finger shield. to hold the shield in place by friction, and furthermore, that the cap 26 may be attached to the finger shield by screw threads instead of by coacting friction surfaces.

Having thus described my invention, 1 claim:

1. In a fountain pen, the combination of a nozzle, a pen therein, a finger shield extending over a small portion only of the pen so as to leave it in plain view of the writer, said shield being spaced from the nozzle and having an end stop surface thereon, a cap having an end stop thereon to abut said nozzle, an internal joint surface on said shield, an external joint surface on said cap, and a second stop surface on said cap intermediate its ends to abutsaid shield stop surface.

2. In a fountain pen, the combination of a nozzle, a pen therein, a finger shield enclosing a space between the nozzle and itself and covering a portion only of the pen leaving the greater portion thereof exposed for Writing, a flared end on said nozzle separated from said shield and providing a passage to said enclosed space, a stop surface on the endofsaid nozzle, a cap, and a stop surface onsaid cap extending over the stop surface of the nozzle and engaging the interior surface ofthe shield for direct ing escaped ink to the space between the nozzle and the shield.

3. In a fountain pen, the combination of a pen, a shield extending over a portion only of the pen leaving the greater portion thereofexposed for Writing, a nozzle, a stop surface on-the shield, a stop surface on the nozzle, an internal joint surface on said only of the pen whereby the greater portion thereof is exposed and the shield may be,

left on the barrel during the writing operation, anda cap adapted to be sec ired to the shield and having a stop surface adapted to abut that on the end of the barrel to seal the pen when not in use.

Intestimony whereof I affix my signature.

- JAMES A. ooonnon. 

